Page 11 - PortGPT_V2.1_C8_Flipbook
P. 11

Some common web browsers are ‘Netscape Navigator’, ‘Mozilla’, ‘Opera’, ‘Apple Safari’, ‘Google
                 Chrome’, ‘Lynx’ (Text only mode web browser) etc., Mosaic was the first graphical web browser.







                           Chrome         Microsoft Edge        Opera              Safari           Firefox


                      Web Server

                 A web server is the principal computer or server that stores the contents of different websites.
                 It provides data and information to computers on request which are connected to it through the
                 Internet. In other words, it can be said that it is a computer that stores data and runs software that is
                 designed to send web pages in file format when requested by web browsers. The server is usually a
                 computer of high configuration i.e., with large storage capacity and high-speed processor that stores

                 data and executes the instructions very fast.

                      Web Client

                 A client is any computer that requests information from the server and a web server is a computer that
                 stores the data & the source application. It is designed to accept requests from remote computers
                 and respond or send on the information as requested.

                 A web client is actually the browser on client’s computer that makes the requests to the remote
                 server. A computer that uses a web (Client) browser is referred to as a web client.


                        CLIENT-SERVER ARCHITECTURE


                 Client-server architecture is defined as an arrangement of computers in which several computers are
                 requesting for some web pages/resources from a centralised computer, also known as web server.
                 The server then responds by giving the requested web pages/resources to the clients. Following
                 figure shows the client-server architecture:









                                             12 12:0000 :
                                           20 20 2 20
                                          FaceTime  Calendarr C en l a  d a  Ph Photosotos  ai M Maill
                                            ! ! !  A A
                                                                 Internet
                                          Weather  Notes Notes  Reminders Reminders  App Store App Store
                                          Instagram  Facebookk  Tw Twitterr e i tt  Whatsapppp hats W  a
                                                   Clients
                                                                                       Server









                                                                                                Web Programming    9
   6   7   8   9   10   11   12   13   14   15   16